3006645646 has 4 divisors (see below), whose sum is σ = 4509968472. Its totient is φ = 1503322822.

The previous prime is 3006645623. The next prime is 3006645647. The reversal of 3006645646 is 6465466003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6465466003 = 8581 ⋅753463.

It is a super-2 number, since 2×3006645646² = 18079836081221514632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3006645599 and 3006645608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3006645647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751661410 + ... + 751661413.

It is an arithmetic number, because the mean of its divisors is an integer number (1127492118).

Almost surely, 2^3006645646 is an apocalyptic number.

3006645646 is a deficient number, since it is larger than the sum of its proper divisors (1503322826).

3006645646 is a wasteful number, since it uses less digits than its factorization.

3006645646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503322825.

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 3006645646 is about 54832.8883609098. Note that the first 3 decimals coincide. The cubic root of 3006645646 is about 1443.3137493528.

The spelling of 3006645646 in words is "three billion, six million, six hundred forty-five thousand, six hundred forty-six".